Car-axle box



UNITED STATES PATENT OFFICE.

ISAAC P. WENDELL, OF PHILADELPHIA, PENNSYLVANIA.

CARfAXLE BOX.

SPECIFICATION forming part of Letters Patent No. 243,821, dated J'uly 5, 1881. Application filed February 21, 1881. (No model.)

To all whom it may concern Be it known that I, ISAAC P. WENDELL, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Car Axle Boxes, of which the following is a specification, reference being had to the annexed drawings, in which Y Figure 1 is an elevation, partly in section, of an axle-box embodying my invention, the section being transversely taken through'the pump-chamber. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is a detail section, partly in elevation, on an enlarged scale, showing valves in oil-passage. Figs. 4 and 5 are detail views, and Fig. 6 is a detail perspective of the pump and oil-passage.

Myiuvention has relation to an improvement on Letters Patent of the United States issued to me November 4,1879, No. 221,259, for caraxle boxes, and has for its object to simplify the construction of the invention embodied in said patent 5 and it consists in the novel construction and arrangement of parts, having reference particularly to the following points: to the provision of means for regulating the supply of oil to the journal-bearing; to the provision of a valve or screw in the ol-passage for decreasing the internal diameter of said passageso as to increase the velocity of the flow of the oil as it passes to the journal-bearing, whereby said oil will be projected or caused to travel along the entire length of said journal-bearing, in order that the latter may be lubricated at all points longitudinally; to preventing any leakage of the oil from the axlebox at the orifice for the pump-plan ger and its rod; to pivotally connecting the latter to the car-body and providing it with a ball-andsocket joint, to allow said rod to accommodate itself to any oscillating or swaying end motion of the car; to constructing the box with enlarged vertical side pockets or channels for the reception of the pumping apparatus and its oilpassage, over which is secured a secondary lid, whereby said pump can readily be detached from and replaced in the axle-box without disturbing the position of the latter on the axle or removing it from the car or truck timbers.

Referring to the accompanying drawings, A represents the axle; A', the box formed with enlarged vertical side pockets or channels, a a, just in advance of the pedestal B, which is of the usual or other suitable construction, and between which and thc axle-box is placed a spring, O.

D represents thepump,placed in one ofthe passages a, and is provided with anol passage or pipe, F, which extends upwardly in said pocket a and thence passes horizontally over the axle and then down into the other pocket a, on the opposite side of said axle-box, .as shown. Saidpumpandoil-passagearerespect ively provided with valves l and f. Said oilpassage may, if desired, be formed of gas-tubin g and elbows, as shown at f f2 f3, &c. V'Ihe pump D is held in position in the pocket'a by means of the lugs g g depending from the secondary lid G ttin g over the top of the axlebox and the pockets a a. Said lugs are formed with shoulders g g', which receive the upper edge of the pump, as shown, thus leaving a space, a', between the said upper edge of pump and the lid G.

H is a collar screwed in or made so as to fit snugly in an opening in said lid G, and is formed with an aperture, h, through which passes the'plunger d of the pump D.

d2 is a rod connecting the plunger d to the car-body, being pivoted to the latter at cl3, and is provided with a ball-and-s'ocket joint, as shown at d4.

On the horizontal partf2 of the oil-passage F is a branch tube, f4, which projects over the oil-duct i, formed in the top of the axle-box and in the journal-bearing I, and is provided with a set-screw, f5, which passes at an angle over pipe f2 into branch f4, as more plainly shown in Fig. 3. On the lid G, directly opposite said screw f5, is an opening through which a screw-driver or other tool is inserted to adjust the screw f5 to regulate the amount of oil passingthrough branch pipe f4 to the axle. After making said adjustment said opening is closed by a plug or screw-stopple, f6.

"f is another screw or valve in pipe f2,which is adjusted to decrease the internal diameter of said pipe to obstruct and prevent the too free passage of the surplus oil therethrough as it passes through said pipe to the oil-chamber, thereby causing the oil pumped into said pipe to flow through the branch pipe f2 to the journal-bearin g with an increased velocity, in order that the oil may pass along the journalbearing its entire length and lubricate the same throughout.

To prevent the escape of oil through openings a2 in the rear sides, a3, of axle-boxes, I use band K and leather segments 7c, the latter being held in place against the axle and in front of said opening by said band, the ends of which pass through the upper side of the axle-box, and are provided with securing and jam nuts to hold said band in position and to take up the wear of the leather segments, as more fully shown in Fig. 5.

The operation is as follows: All of said parts being arranged as shown, and attached in position to a car truck or body, the vertical movement of the latter on its springs, through the medium of rod d2, causes the plunger d to reciprocate in the pump D to force oil through the valves d and f to the oil-passage G. The adjusting-screws f5 f7 having been previously set to allow just enough oil to pass with suitable velocity through branch pipe f4 to the journal-bearing, the latter is lubricated by having only so much oil upon it as is neeessary to effect the perfect oiling of the same. The surplus oil in the passage or pipe f2 finds its Way through valve f7 to the pipe f3, and is thereby conducted to the oil-well in the axle-box without splashing up against the sides of the same, and thereby preventing any agitation of the oil and decreasingits liability to leak through the lid or other joints of the axle-box. As the ear vibrates vertically its ends often sway or oscillate in a curved line, hence the necessity of the ball-and-socket joint d4 on the rod d2; for as said oscillation takes place said joint allows said rod to bend to accommodate itself to said movement of the car, thereby avoiding any interference with the pumping operation, or straining of the plunger-rod. The pump being held in position by the lugs g on lid G, any oil that may work up between the pump-walls and its plunger passes over the top edge of said pump through the space or interval a and ows back into the oil-well. Any adhering oil on the plunger is removed by the collar H, and is thereby conducted back into the axle-box, thus preventing any leakage of oil at or through said parts.

If, from any cause, it becomes necessary to remove the pump and its appliances,the plunger is simply uncoupled from the car-body and thelid G removed from the axle-box. The pump and its attached parts may then be lifted out of the axle-box for repairs or otherwise, and is replaced by reversing said operalions,which are effected without removing or disturbing the position of the axle-box.

What I claim as my invention isl. The axle-box A', provided with vertical side pockets or channels, a a, on either side of the axle, in one of which is placed a pump, in combination with a lid, G, for said pockets or channels, substantially as shown and described.

2. A car-axle box provided with an oil,- pumping device formed with an oil-conducting passage provided with an adjusting valve or screw for regulating the supply of oil owing to the journal-bearing, substantially as shown and described.

3. In combination with aXle-boX A', pedestal B, and pump D, the connecting plungerrod d2, provided with a balLand-socketjoint, d4, as and for the purpose set forth. p

4. The combination ofaXle-boX A', lid G, and pump D, said lid G being provided with collar H, through which passes the pump-plunger d', substantially as and for the purpose set forth.

5. An axlebox provided with a pumping device and an oil-passage in which is a valve or screw for decreasing the size of the opening in said oil-passage, whereby the oil pumped to the journal-bearing is forced thereto with a predetermined velocity, substantially as shown and described.

6. In combination withA aXle-boX A', pump D, and oil-passage F, provided with valvesor screwsf5f6, substantially as and for the pur pose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 6th day of Ju 1y, A. D. 1880.

ISAAC P. WENDELL. Witnesses:

B. F. TELLER, FRANK BLAYNEY. 

